Hey guys, I have noticed quite a few sprites seem to use a purple-ish tone to them, seems to be in place of blacks/grays.

I was just wondering why people do this? Is there a specific reason for it?

Thanks

It's also because we tend to draw light sources as yellow/orange:



And to create more contrast between lit surfaces and shadowed surfaces, we can either make colors brighter and darker, or we can change the hues a bit. So often we choose a complementary color (purple or blue) for the shadows, as it makes the color ramps a bit more dynamic and at the same time feel more like bright/shadow parts. Also think about color temperature; when you're in the sun you're warmer than in the shadows, and blue is considered a cool color.